1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4 2; RUN: opt -passes=loop-load-elim -S %s | FileCheck %s 3 4target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128" 5 6define void @non_const_distance(i64 %start, ptr %A, i1 %c) { 7; CHECK-LABEL: define void @non_const_distance( 8; CHECK-SAME: i64 [[START:%.*]], ptr [[A:%.*]], i1 [[C:%.*]]) { 9; CHECK-NEXT: entry: 10; CHECK-NEXT: [[SEL:%.*]] = select i1 [[C]], i64 1, i64 0 11; CHECK-NEXT: [[SEL_NOT:%.*]] = xor i64 [[SEL]], -1 12; CHECK-NEXT: br label [[LOOP:%.*]] 13; CHECK: loop: 14; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[START]], [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ] 15; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[A]], [[ENTRY]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP]] ] 16; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr i32, ptr [[PTR_IV]], i64 [[SEL_NOT]] 17; CHECK-NEXT: [[L:%.*]] = load i32, ptr [[ADD_PTR]], align 4 18; CHECK-NEXT: store i32 [[L]], ptr [[PTR_IV]], align 4 19; CHECK-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1 20; CHECK-NEXT: [[PTR_IV_NEXT]] = getelementptr i8, ptr [[PTR_IV]], i64 4 21; CHECK-NEXT: [[EC:%.*]] = icmp eq i64 [[IV]], 1000 22; CHECK-NEXT: br i1 [[EC]], label [[EXIT:%.*]], label [[LOOP]] 23; CHECK: exit: 24; CHECK-NEXT: ret void 25; 26entry: 27 %sel = select i1 %c, i64 1, i64 0 28 %sel.not = xor i64 %sel, -1 29 br label %loop 30 31loop: 32 %iv = phi i64 [ %start, %entry ], [ %iv.next, %loop ] 33 %ptr.iv = phi ptr [ %A, %entry ], [ %ptr.iv.next, %loop ] 34 %add.ptr = getelementptr i32, ptr %ptr.iv, i64 %sel.not 35 %l = load i32, ptr %add.ptr, align 4 36 store i32 %l, ptr %ptr.iv, align 4 37 %iv.next = add i64 %iv, 1 38 %ptr.iv.next = getelementptr i8, ptr %ptr.iv, i64 4 39 %ec = icmp eq i64 %iv, 1000 40 br i1 %ec, label %exit, label %loop 41 42exit: 43 ret void 44} 45